[ANNOUNCE] SqueezeButtonPi - Tool to use buttons and rotary encoders on a RPi

[hsmeets]

Can anyone help me?
The rotary encoder appears to only work in one direction: forward. I have tried all the expected ways (1..9) using this command:

sbpd -v -z e,6,5,TRAC,1 b,7,PLAY

(the only mode that seems to work is 1) but anyway it goes to the next track both by turning forward and back.
The command

sbpd -v -z e,6,5,VOL,1 b,7,PLAY

used for controlling the volume also fails in both directions.

BTW for volume use VOLU not VOL

See: read me on https://github.com/paul-1/SqueezeButtonPi-Daemon

[pdo59]

What encoder do you use?

Assuming you have not mixed up GPIO numbering and pin numbering on the header.

Pin 5 would be GPIO 3 and pin 6 would be ground. Which could explain only working in one direction.
GPIO 5 & 6 are pin 29 & 31

Other possibility is a defective encoder or defect GPIO, have you tried with other gpio’s?

In the command line I wrote the GPIO numbers, is this correct?
The PLAY button works because is connected to pin 26 that is GPIO7; the encoder is connected to pin 29 / GPIO5 and pin 31 / GPIO6.
With this configuration the encoder work perfectly in a Volumio environment.

[hsmeets]

What encoder do you use?

Assuming you have not mixed up GPIO numbering and pin numbering on the header.

Pin 5 would be GPIO 3 and pin 6 would be ground. Which could explain only working in one direction.
GPIO 5 & 6 are pin 29 & 31

Other possibility is a defective encoder or defect GPIO, have you tried with other gpio’s?

[pdo59]

Can anyone help me?
The rotary encoder appears to only work in one direction: forward. I have tried all the expected ways (1..9) using this command:

sbpd -v -z e,6,5,TRAC,1 b,7,PLAY

(the only mode that seems to work is 1) but anyway it goes to the next track both by turning forward and back.
The command

sbpd -v -z e,6,5,VOL,1 b,7,PLAY

used for controlling the volume also fails in both directions.

[pdo59]

Hi paul, I want to control the current playlist, not the volume. I tried also this:

sbpd -v -z e,6,5,KEY:KEY_Z-KEY_B b,7,PLAY

but no result, I can only select the next track. I have configured ir-remote for jivelite and in this case KEY_Z - KEY_B both work.

[paul-]

Well then tell it to use VOLU instead of TRAC

For rotary encoders (one, volume only):
    e,pin1,pin2,CMD[,edge]
        "e" for "Encoder"
        p1, p2: GPIO PIN numbers in BCM-notation
        CMD: Command. one of. \n\
            VOLU for Volume\n\
            TRAC for Prev/Next track\n\
            KEY:<Positive key_name>-<Negative key_name>
        mode: Optional. one of\n\
            1   - Step mode (default)\n\
            2-9 - Detent mode - Assumes 1 dial click is x steps.

[pdo59]

TRAC command works only forward

Hi all,
I have successfully installed this great plugin in my piCoreplayer and the encoder works. However works only "next track".
I use this command:

sbpd e,6,5,TRAC,1 b,7,PLAY

My config is:
Raspberry Pi 4B
Encoder module KY-040: CLK GPIO5 - DT GPIO6 - SW GPIO7
piCorePlayer version: 8.1.0
piCore version: 13.1
Squeezelite v1.9.9-1391-pCP
Jivelite
Thank you for your help

[Themightybob]

Hi all,

so I tried to do this wonderful thing to add a rotary encoder connected to the gpio to control the volume. And... all my attempts failed. I read the thread like millions times.
First of all mega noobs about command lines etc... but i did my best.

The material;
Raspberry pi A+
PiFi DAC+ v2.0 (set as Hifiberry DAC+ and works like a charm) > gpio 18 to 21 are used by the DAC.
A micro embedded electronic HAT which allowed to use 3 sets of all the GPIO pins.
Everything is working and I have sound and all.
Rotary encoder KY040 : gnd to gnd , + to 3.3V, sw to 26, dt to 23 and clk to 24

I created a script.sh in home/tc

#!/bin/sh

# start pigpiod daemon

pigpiod -t 0 -f -l -s 10

# give the daemon a moment to start up before issuing the sbpd command

sleep 1

# load uinput module, then set the permission to group writable, so you don't need to run sbpd with root permissions

sudo modprobe uinput

sudo chmod g+w /dev/uinput

# issue the sbpd command

# This command for volume and play pause

sbpd e,23,24,VOLU,2
b,26,PAUS,2,0,STOP,500

did the

chmod 755 script.sh

when I started my script no more sound.
So I rebbot and digged a little bit. When I started pigpiod > no sound any more.
and I can't figure why

I started sbpd just to check and I have that


Any help will be appreciated.

Thank you for your time and making/maintaining picoreplayer

Edit: removed the DAC hat, removed the gpio multiplier, removed the script and use the CLI instead. Works fine now.

pigpiod -t 1 -f -l -s 10;sleep 1;modprobe uinput;chmod g+w /dev/uinput;sbpd e,24,25,VOLU,2 b,22,PLAY

I will try later (and have time) to try again with the DAC.

[paul-]

The other pins are for the push button on the stem of the encoder. You can connect that to GPIO and do something else.

[Besth]

Hello,

i have this rotary encoder KY040 or KY-040:

there are 5 connectors: CLK, DT, SW, + and GND

GND to GND
SW (Switch) like an button to a GPIO, so i can use the rotary encoder as button, when pressed in the middle.

now i have 3 left: CLK, DT and +
can someone give me a hint how to connect this one to the raspberry to use with sbpd?

[edit]
ok i tried and it works:
+ is 3V3
CLK is PIN1
DT is PIN2

so my command is now:
sbpd b,22,PLAY e,24,25,VOLU

[mfraser]

Depends on how you have the software configured. But those button output voltage when pressed.

This works:
sbpd -v b,20,POWR,0,1

Now I can turn it on/off just by touching the body of the player.

[paul-]

Depends on how you have the software configured. But those button output voltage when pressed.

[mfraser]

Capacitive touch

I now have a https://www.adafruit.com/product/1374 capacitive touch connected to pin 20 and have set both resist and pressed to 1 as the output goes high when activated. Is this correct?

[chschind]

For this project, I really want to preserve the outside and interface of the old radio. While this means in principle keeping the non-momentary original switches (buttons), you make we wonder if there is an indirect way to have the non-momentary switches activate a second set of momentary switches on their way to the GPIO pins, maybe through a time delay circuit or relay? I’ll have to do some reading.

On the software side, I wonder if I could modify the code that monitors the pins to register a button push if a connection is made via my non-momentary button. It could fire after a fixed time delay if the signal is maintained on specified pin. After a longer delay, if there was no further activity, the pin could be reset so it’s not left floating. Any thoughts on which portion of the source code I would need to look at?

Alternatively, maybe I could take the idea of a delay / second button and execute it in software. Maybe a script that reacts to a change on pin 1, triggered by my mechanical non-momentary switch, and then momentarily flips a second pin on and off on the Pi, which sbpd could interpret as a button push?

I’ll try and work through a few possibilities and share any results.

Hello Turner1200,

i faced the same problem when i wanted to rebuild an old cassette recorder with pcp.
Last but not least, I used gpiozero and LMSTools to control toggle style switches and rotary encoders.
This combination works very well with pcp and is relatively easy to implement.
If you need some advice i can help.

Greetings

[paul-]

All kinds of things you can do with software. This tool was just not written that way.